PT-2026-65724 · Apache · Apache Traffic Server

Apache Community · CVE-2026-58150 · Published 2026-07-29 · Updated 2026-07-29

Mitre

CVSS v3.1

10

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N

Apache Traffic Server does not reject Transfer-Encoding in HTTP/2 requests, allowing downgrade request smuggling.

This issue affects Apache Traffic Server: from 8.0.0 through 8.1.9, from 9.0.0 through 9.2.14, from 10.0.0 through 10.1.3.

Users are recommended to upgrade to version 9.2.15 or 10.1.4, which fix the issue.

Fix

HTTP Request/Response Smuggling

Weakness Enumeration

CWE-444

Related Identifiers

CVE-2026-58150

Affected Products

Apache Traffic Server

References · 2

• https://lists.apache.org/thread/5prl9glcm9g2swnq9hqxvnokylm1gr6d · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-58150 · Security Note